CN114481689A - Color inkless printing paper - Google Patents
Color inkless printing paper Download PDFInfo
- Publication number
- CN114481689A CN114481689A CN202011255840.4A CN202011255840A CN114481689A CN 114481689 A CN114481689 A CN 114481689A CN 202011255840 A CN202011255840 A CN 202011255840A CN 114481689 A CN114481689 A CN 114481689A
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- inkless
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- yellow
- resin
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- 238000007639 printing Methods 0.000 title claims abstract description 44
- 239000010410 layer Substances 0.000 claims abstract description 152
- 229920005989 resin Polymers 0.000 claims abstract description 40
- 239000011347 resin Substances 0.000 claims abstract description 40
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 18
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011241 protective layer Substances 0.000 claims abstract description 17
- 239000002904 solvent Substances 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000002318 adhesion promoter Substances 0.000 claims abstract description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 10
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 claims abstract description 10
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 claims abstract description 8
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims abstract description 5
- 239000002033 PVDF binder Substances 0.000 claims abstract description 4
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 4
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229960001826 dimethylphthalate Drugs 0.000 claims abstract description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 4
- 229920002545 silicone oil Polymers 0.000 claims abstract description 4
- 239000004698 Polyethylene Substances 0.000 claims abstract description 3
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 claims abstract description 3
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 claims abstract description 3
- 229920000573 polyethylene Polymers 0.000 claims abstract description 3
- 229920002620 polyvinyl fluoride Polymers 0.000 claims abstract description 3
- 239000000975 dye Substances 0.000 claims description 63
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 24
- RHDGNLCLDBVESU-UHFFFAOYSA-N but-3-en-4-olide Chemical compound O=C1CC=CO1 RHDGNLCLDBVESU-UHFFFAOYSA-N 0.000 claims description 15
- 239000001003 triarylmethane dye Substances 0.000 claims description 15
- 229910000040 hydrogen fluoride Inorganic materials 0.000 claims description 13
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 12
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 12
- 239000011247 coating layer Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 2
- SIIRPIVXUCXWEK-UHFFFAOYSA-N CC(OC=C(O)Cl)=O Chemical compound CC(OC=C(O)Cl)=O SIIRPIVXUCXWEK-UHFFFAOYSA-N 0.000 claims 1
- 238000010017 direct printing Methods 0.000 abstract 1
- 230000004044 response Effects 0.000 description 13
- 238000012360 testing method Methods 0.000 description 7
- 125000001153 fluoro group Chemical group F* 0.000 description 6
- 239000003086 colorant Substances 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 229920002313 fluoropolymer Polymers 0.000 description 4
- 239000004811 fluoropolymer Substances 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002932 luster Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- RVNPMZPXRFCIPW-UHFFFAOYSA-N C(C)(=O)OC=C.C(=O)(O)C=CCl Chemical compound C(C)(=O)OC=C.C(=O)(O)C=CCl RVNPMZPXRFCIPW-UHFFFAOYSA-N 0.000 description 2
- DLZPQJDDVWPHNU-UHFFFAOYSA-N C(C)(=O)OC=C.OC=CCl Chemical compound C(C)(=O)OC=C.OC=CCl DLZPQJDDVWPHNU-UHFFFAOYSA-N 0.000 description 2
- 229910018557 Si O Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910021419 crystalline silicon Inorganic materials 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 241001422033 Thestylus Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- IANQTJSKSUMEQM-UHFFFAOYSA-N benzofuran Natural products C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/82—Paper comprising more than one coating superposed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/41—Base layers supports or substrates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/12—Organo-metallic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/14—Carboxylic acids; Derivatives thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/35—Polyalkenes, e.g. polystyrene
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/12—Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/42—Coatings with pigments characterised by the pigments at least partly organic
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Abstract
The invention relates to a color inkless printing paper which comprises a substrate layer, an inkless coating and a protective layer, wherein the protective layer comprises fluorocarbon resin, an adhesion promoter, a solvent and an auxiliary agent, the fluorocarbon resin is selected from one or more of polytetrafluoroethylene resin, polyvinylidene fluoride resin, polychlorotrifluoroethylene resin, vinyl ether resin and polyvinyl fluoride resin, and accounts for 5-30% by mass, the adhesion promoter is selected from one or more of tetraethyl titanate and n-butyl titanate, and accounts for 0-2% by mass, the solvent is water and accounts for 60-85% by mass, and the auxiliary agent is selected from one or more of dibutyl phthalate, dimethyl phthalate, polyethylene wax and dimethyl silicone oil, and accounts for 2-5% by mass. The color inkless printing paper based on the invention can realize the direct printing of the color advertisement pictures and texts on the PET material through inkless printing.
Description
Technical Field
The invention relates to the technical field of printing consumables, in particular to a color inkless printing paper.
Background
The types of printers are basically classified into stylus printers, ink jet printers and laser printers, which need to be matched with corresponding printing materials when printing: the ink ribbon matched with the stylus printer, the ink matched with the ink-jet printer or the integrated ink box or the ink powder matched with the laser printer or the toner cartridge needs to be replaced regularly, and the used waste ink ribbon, the ink box or the toner cartridge are not easy to recover and cause great pollution to the environment.
In order to thoroughly eliminate the environmental pollution caused by waste printing materials, the ink box is retired, an ink ribbon and a selenium drum are not used, and only one special paper, namely inkless printing paper, is used, so that exquisite pictures or characters can be output through the energy provided by a printer. At present, the inkless printing paper can only rapidly print black images and texts, is widely applied to industries such as logistics express delivery, labels, lottery tickets, supermarkets, banks and the like, but cannot meet the printing of images and texts such as advertisements, propaganda, packaging and the like with higher color requirements, and has a limited application range. Therefore, there is a need for developing a paper that is free of ink and can print color images and texts without causing environmental pollution.
The printed graphic patterns are easy to fade due to long-time exposure of the inkless printing paper under ultraviolet illumination, and the patterns are easy to turn yellow and fade after a period of time.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a color inkless printing paper, which adopts fluorocarbon resin as a protective layer, effectively improves the luster and the aging resistance of patterns, and solves the problem that the patterns are easy to turn yellow and fade in the prior art.
The specific solution provided by the invention is as follows:
the invention provides a color inkless printing paper which comprises a substrate layer, an inkless coating and a protective layer, wherein the protective layer comprises fluorocarbon resin, an adhesion promoter, a solvent and an auxiliary agent, the fluorocarbon resin is selected from one or more of polytetrafluoroethylene resin, polyvinylidene fluoride resin, polychlorotrifluoroethylene resin, vinyl ether resin and polyvinyl fluoride resin, and accounts for 5-30% by mass, the adhesion promoter is selected from one or more of tetraethyl titanate and n-butyl titanate, and accounts for 0-2% by mass, the solvent is water and accounts for 60-85% by mass, the auxiliary agent is selected from one or more of dibutyl phthalate, dimethyl phthalate, polyethylene wax and dimethyl silicone oil, and the auxiliary agent accounts for 2-5% by mass.
Preferably, the inkless coating is coated on the substrate layer and comprises at least three thermosensitive layers, namely a thermosensitive cyan layer (3), a thermosensitive red layer (4) and a thermosensitive yellow layer (5) from top to bottom; the heat-sensitive cyan-developing layer (3) is one selected from a cyan triarylmethane dye layer, a cyan fluorane dye layer, a cyan spiropyran dye layer, a cyan furanone dye layer and a cyan pyridine dye layer; the heat-sensitive color-displaying layer (4) is one selected from a red triarylmethane dye layer, a red fluorane dye layer, a red spiropyran dye layer, a red furanone dye layer and a red pyridine dye layer; the heat-sensitive yellow-appearing layer (5) is one selected from a yellow triarylmethane dye layer, a yellow fluorane dye layer, a yellow spiropyran dye layer, a yellow furanone dye layer and a yellow pyridine dye layer.
Preferably, the ink-free coating further comprises a precoating layer, wherein the precoating layer is coated between the substrate layer and the ink-free coating layer and is selected from one or more of hydroxyl vinyl chloride-vinyl acetate resin or carboxyl vinyl chloride-vinyl acetate resin.
Preferably, the thickness of each thermosensitive layer is 5-30 μm.
Preferably, the thickness of the protective layer is 10-20 μm.
Preferably, the thickness of the precoat layer is 5-30 μm.
Preferably, the heat-sensitive layer further comprises an intermediate spacer layer which is a mixture of resin and filler and is applied between the heat-sensitive layers.
The technical scheme based on the invention has the following beneficial effects:
(1) the high bond energy of a C-F bond of fluorocarbon resin is the basis of a fluororesin serving as a high weather-resistant coating, the wavelength of ultraviolet light in sunlight with the C-F bond energy (485KJ/mol) being more than or equal to that of a Si-O bond energy (422KJ/mol) being more than or equal to that of the C-Si bond energy (318KJ/mol) is 220-400 nm, the energy of photons with the wavelength of 220nm is 544KJ/mol, the C-F bond of the fluoropolymer can be destroyed only by the photons with the wavelength being less than 220nm, in the sunlight, the proportion of the photons with the wavelength being less than 220nm is very small, and the sunlight almost has no influence on the fluoropolymer, so that the luster of patterns can be effectively improved and the aging resistance is realized;
(2) the fluorine polymer has extremely high chemical stability, fluorine atoms have the highest electronegativity and smaller atomic radius, the C-F bond energy is large, the repulsion force of the fluorine atoms on carbon chains is large, the carbon chains form a spiral structure and are surrounded by the fluorine atoms, and the shielding effect is realized, so that the extremely high chemical stability and the solvent resistance of the fluorine polymer are determined.
(3) The fluorocarbon coating has extremely low surface energy, excellent hydrophobicity, oil repellency and extremely low friction coefficient, so that the printing process can be smoother, the printing head is protected, and the printing life is prolonged.
(4) Cyan triarylmethane dyes, cyan fluorane dyes, cyan spiropyran dyes, cyan furanone dyes and cyan pyridine dyes are used from white to cyan, the temperature response range is 80-120 ℃, and the temperature response range of the red triarylmethane dyes, the red fluorane dyes, the red spiropyran dyes, the red furanone dyes and the red pyridine dyes from near-colorless to yellow is 100-150 ℃; the temperature response range of the yellow triarylmethane dye, the yellow fluorane dye, the yellow spiropyran dye, the yellow furanone dye and the yellow pyridine dye from near colorless to yellow is 140-200 ℃; the nearly colorless thermosensitive layers respectively generate color development reaction under the heated condition, the inkless thermosensitive layers are heated by a heating head of a printer, so that the thermosensitive layers can respectively display three primary colors of yellow (Y), red (M) and cyan (C) pigments, and the three primary colors of the pigments are superposed to output color pictures and texts;
(5) each dye layer has a certain temperature response interval, so that each thermosensitive layer shows a color corresponding to a specific temperature through the specific temperature provided by a printing head in the printer, and the image and text with a certain color are obtained.
(6) The obtained thermosensitive layers from bottom to top are stable in color after color development, stable in image and text, convenient to store for a long time, and capable of meeting printing requirements of high-color-requirement image and text such as advertisement, propaganda and packaging.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, and the embodiments described by way of reference to the drawings are exemplary and intended to be illustrative of the invention and should not be construed as limiting the invention.
The invention is described below with reference to specific embodiments in conjunction with the accompanying drawings.
Example 1:
the color inkless printing paper comprises a substrate layer, an inkless coating and a protective layer, wherein the protective layer comprises fluorocarbon resin, an adhesion promoter, a solvent and an auxiliary agent, the thickness of the protective layer is 20 mu m, the fluorocarbon resin is polytetrafluoroethylene resin and accounts for 25 mass percent, the adhesion promoter is tetraethyl titanate and accounts for 2 mass percent, the solvent is water and accounts for 68 mass percent, and the auxiliary agent is dibutyl phthalate and accounts for 5 mass percent; the inkless coating is coated on the substrate layer and comprises three thermosensitive layers, namely a thermosensitive cyan layer, a thermosensitive red layer and a thermosensitive yellow layer from top to bottom, and the thickness of each thermosensitive cyan layer, the thermosensitive red layer and the thermosensitive yellow layer is 25 micrometers; the heat-sensitive cyan development layer is a cyan triarylmethane dye layer; the heat-sensitive red-displaying layer is a red triarylmethane dye layer; the thermosensitive yellow-displaying layer is a yellow triarylmethane dye layer, and the base material layer is made of a PET material. The inkless printing plate in the embodiment 1 is printed by an inkless printer, and color pictures and texts can be obtained by printing according to a control program in the printer.
Example 2
The color inkless printing paper comprises a substrate layer, a precoating layer, an inkless coating and a protective layer, wherein the protective layer is 10 microns thick and comprises fluorocarbon resin, an adhesion promoter, a solvent and an auxiliary agent, the fluorocarbon resin is polyvinylidene fluoride resin and accounts for 30 mass percent, the adhesion promoter is n-butyl titanate and accounts for 1 mass percent, the solvent is water and accounts for 67 mass percent, and the auxiliary agent is dimethyl phthalate and accounts for 2 mass percent; the inkless coating is coated on the substrate layer and comprises three thermosensitive layers, namely a thermosensitive cyan layer (3), a thermosensitive red layer (4) and a thermosensitive yellow layer (5) from top to bottom; the heat-sensitive chromogenic cyan layer (3) is selected from a cyan spiropyran dye layer; the heat-sensitive red-displaying layer (4) is selected from a red spiropyran dye layer; the thermosensitive yellow-appearing layer (5) is selected from a yellow spiropyran dye layer; the base material layer is made of a PET material; the precoating layer is coated between the base material layer and the inkless coating layer, is selected from hydroxyl vinyl chloride-vinyl acetate resin, has the thickness of 25 mu m, and can improve the adhesive force between the thermosensitive coating layer and the PET material.
The heat-sensitive cyan-appearing layer, the heat-sensitive red-appearing layer and the heat-sensitive yellow-appearing layer are sequentially coated on the precoating layer from bottom to top, and the response temperature of each coating is as follows: the color graphic can display the superposition of three primary colors of cyan (C), red (M) and yellow (Y) at 80-120 ℃, 100-150 ℃ and 140-200 ℃ to finally output the color graphic. In practical application, the color changing temperature and the response speed of each layer are closely related to the position of the thermal dye layer, the thermal dye with the highest response temperature (poor temperature sensitivity) is arranged on the uppermost layer, and the thermal dye with the lowest response temperature (high temperature sensitivity) is arranged on the lowermost layer, so that good image-text effect output is ensured.
The heat-sensitive cyan layer is a 7, 7-bis (4- (diethylamino) -2-ethoxyphenyl) furo [3,4-b ] pyridine-5 (7H) -ketone dye layer, the heat-sensitive red layer is a 6' -diethylamino-1 ', 3' -dimethyl benzene benzofuran dye layer, and the heat-sensitive yellow layer is a 3',6' -dimethoxy fluorane dye layer.
The inkless printing plate in the embodiment 2 is printed by an inkless printer, and color pictures and texts can be obtained by printing according to a control program in the printer.
Example 3
The invention provides a color inkless printing paper which comprises a base material layer, a precoating layer, an inkless coating and a protective layer, wherein the inkless coating is coated on the base material layer and comprises three thermosensitive layers, namely a thermosensitive cyan layer (3), a thermosensitive red layer (4) and a thermosensitive yellow layer (5) from top to bottom; an intermediate spacing layer is arranged between the two layers of the thermosensitive cyan layer (3), the thermosensitive red layer (4) and the thermosensitive yellow layer (5), is a mixture of resin and filler, and mainly has the function of more accurately controlling the color change temperature of each layer. The heat-sensitive cyan-developing layer (3) is selected from a cyan furanone dye layer; the heat-sensitive color-developing layer (4) is selected from a red furanone dye layer; the heat-sensitive yellow-appearing layer (5) is selected from yellow furanone dye layers. The protective layer comprises fluorocarbon resin, an adhesion promoter, a solvent and an auxiliary agent, wherein the fluorocarbon resin is selected from vinyl ether resin and accounts for 15% by mass, the adhesion promoter is selected from tetraethyl titanate and n-butyl titanate and accounts for 2% by mass, the solvent is water and accounts for 80% by mass, and the auxiliary agent is selected from dimethyl silicone oil and accounts for 3% by mass; the precoating layer is selected from carboxyl vinyl chloride-vinyl acetate resin, so that the adhesive force between the heat-sensitive coating layer and the base material layer can be improved. The heat-sensitive cyan-appearing layer, the heat-sensitive red-appearing layer and the heat-sensitive yellow-appearing layer are sequentially coated on the precoating layer from bottom to top.
The theoretical color of each thermal dye layer is determined by the temperature of the printing head, so that the color of the overlaid image-text is determined, but in practical application, the color change temperature and the response speed of each layer are closely related to the thickness of the coating, the color effect after printing can be accurately controlled by controlling the thickness of each thermal coating, and under the condition of the thickness, the color can be quickly changed and the good color value can be ensured.
The thickness of the heat-sensitive cyan layer 3, the heat-sensitive red layer 4 and the heat-sensitive yellow layer 5 are all 10 mu m, the thickness of the protective layer is 10 mu m, and the thickness of the precoating layer is 20 mu m.
The inkless printing plate in the embodiment 3 is printed by an inkless printer, and color pictures and texts can be obtained by printing according to a control program in the printer.
The three embodiments are subjected to aging resistance tests, and the test environment is as follows: UVA-340 lamp, illumination intensity: 0.76W/(m)2Nm); wavelength: 340 nm; blackboard temperature: 50 ± 3 ℃, test time: 3600h, test results, namely, the test is carried out once per week; and (3) testing content: whether the appearance is changed or not, whether the color is changed or not and whether the delta E value is less than 1.5 or not are tested by a color difference meter.
The test results are: the appearance is unchanged, the color is unchanged, and the delta E value tested by a color difference meter is 0.9 and less than 1.5, thereby meeting the requirements.
The technical scheme based on the invention has the following beneficial effects:
(1) the high bond energy of a C-F bond of fluorocarbon resin is the basis of a fluororesin serving as a high weather-resistant coating, the wavelength of ultraviolet light in sunlight with the C-F bond energy (485KJ/mol) being more than or equal to that of a Si-O bond energy (422KJ/mol) being more than or equal to that of the C-Si bond energy (318KJ/mol) is 220-400 nm, the energy of photons with the wavelength of 220nm is 544KJ/mol, the C-F bond of the fluoropolymer can be destroyed only by the photons with the wavelength being less than 220nm, in the sunlight, the proportion of the photons with the wavelength being less than 220nm is very small, and the sunlight almost has no influence on the fluoropolymer, so that the luster of patterns can be effectively improved and the aging resistance is realized;
(2) the fluorine polymer has extremely high chemical stability, fluorine atoms have the highest electronegativity and smaller atomic radius, the C-F bond energy is large, the repulsion force of the fluorine atoms on carbon chains is large, the carbon chains form a spiral structure and are surrounded by the fluorine atoms, and the shielding effect is realized, so that the extremely high chemical stability and the solvent resistance of the fluorine polymer are determined.
(3) The fluorocarbon coating has extremely low surface energy, excellent hydrophobicity, oil repellency and extremely low friction coefficient, so that the printing process can be smoother, the printing head is protected, and the printing life is prolonged.
(4) Cyan triarylmethane dyes, cyan fluorane dyes, cyan spiropyran dyes, cyan furanone dyes and cyan pyridine dyes are used from white to cyan, the temperature response range is 80-120 ℃, and the temperature response range of the red triarylmethane dyes, the red fluorane dyes, the red spiropyran dyes, the red furanone dyes and the red pyridine dyes from near-colorless to yellow is 100-150 ℃; the temperature response range of the yellow triarylmethane dye, the yellow fluorane dye, the yellow spiropyran dye, the yellow furanone dye and the yellow pyridine dye from near colorless to yellow is 140-200 ℃; the nearly colorless thermosensitive layers respectively generate color development reaction under the heated condition, the inkless thermosensitive layers are heated by a heating head of a printer, so that the thermosensitive layers can respectively display three primary colors of yellow (Y), red (M) and cyan (C) pigments, and the three primary colors of the pigments are superposed to output color pictures and texts;
(5) each dye layer has a certain temperature response interval, so that each thermosensitive layer shows a color corresponding to a specific temperature through the specific temperature provided by a printing head in the printer, and the image and text with a certain color are obtained.
(6) The obtained thermosensitive layers from bottom to top are stable in color after color development, stable in image and text, convenient to store for a long time, and capable of meeting printing requirements of high-color-requirement image and text such as advertisement, propaganda and packaging.
Although embodiments of the present invention have been described in detail above, those of ordinary skill in the art will understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The color inkless printing paper comprises a substrate layer, an inkless coating and a protective layer, and is characterized in that the protective layer comprises fluorocarbon resin, an adhesion promoter, a solvent and an auxiliary agent, the fluorocarbon resin is selected from one or more of polytetrafluoroethylene resin, polyvinylidene fluoride resin, polychlorotrifluoroethylene resin, vinyl ether resin and polyvinyl fluoride resin and accounts for 5-30% by mass, the adhesion promoter is selected from one or more of tetraethyl titanate and n-butyl titanate and accounts for 0-2% by mass, the solvent is water and accounts for 60-85% by mass, the auxiliary agent is selected from one or more of dibutyl phthalate, dimethyl phthalate, polyethylene wax and dimethyl silicone oil and accounts for 2-5% by mass.
2. The printing paper according to claim 1, wherein the inkless coating layer is applied on the substrate layer and comprises at least three thermosensitive layers, from top to bottom, a thermosensitive cyan layer (3), a thermosensitive red layer (4) and a thermosensitive yellow layer (5); the heat-sensitive cyan development layer (3) is selected from one or more of a cyan triarylmethane dye layer, a cyan fluorane dye layer, a cyan spiropyran dye layer, a cyan furanone dye layer and a cyan pyridine dye layer; the heat-sensitive color-displaying layer (4) is selected from one or more of a red triarylmethane dye layer, a red fluorane dye layer, a red spiropyran dye layer, a red furanone dye layer and a red pyridine dye layer; the heat-sensitive yellow-appearing layer (5) is selected from one or more of a yellow triarylmethane dye layer, a yellow fluorane dye layer, a yellow spiropyran dye layer, a yellow furanone dye layer and a yellow pyridine dye layer.
3. The color inkless printing paper as set forth in claim 1 or 2, further comprising a precoat layer, applied between the base material layer and the inkless coating layer, selected from one or more of hydroxychlorovinyl acetate or carboxychlorovinyl acetate.
4. The sheet of inkless color printing paper according to claim 2, wherein each of the thermosensitive layers has a thickness of 5 to 30 μm.
5. The printing paper according to claim 1, wherein the protective layer has a thickness of 10 to 20 μm.
6. The printing paper according to claim 3, wherein the thickness of the precoat layer is 5-30 μm.
7. The sheet of inkless color printing paper according to claim 1, further comprising an intermediate spacer layer, which is a mixture of a resin and a filler, applied between the thermosensitive layers.
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| CN202011255840.4A CN114481689A (en) | 2020-11-11 | 2020-11-11 | Color inkless printing paper |
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|---|---|---|---|---|
| JPS54111837A (en) * | 1978-02-22 | 1979-09-01 | Ricoh Co Ltd | Heat sensitive recording sheet |
| CN1035901A (en) * | 1987-12-29 | 1989-09-27 | 纳舒厄公司 | But the coating material of hot print and system method thereof |
| JP2003145929A (en) * | 2001-11-08 | 2003-05-21 | Fuji Photo Film Co Ltd | Heat sensitive recording material |
| JP2004243668A (en) * | 2003-02-14 | 2004-09-02 | Fuji Photo Film Co Ltd | Multicolor thermosensitive recording material |
| JP2006076112A (en) * | 2004-09-09 | 2006-03-23 | Ricoh Co Ltd | Thermosensitive recording material |
| CN101117064A (en) * | 2006-07-31 | 2008-02-06 | 三星电子株式会社 | Recording media for thermal transfer printers |
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2020
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54111837A (en) * | 1978-02-22 | 1979-09-01 | Ricoh Co Ltd | Heat sensitive recording sheet |
| CN1035901A (en) * | 1987-12-29 | 1989-09-27 | 纳舒厄公司 | But the coating material of hot print and system method thereof |
| JP2003145929A (en) * | 2001-11-08 | 2003-05-21 | Fuji Photo Film Co Ltd | Heat sensitive recording material |
| JP2004243668A (en) * | 2003-02-14 | 2004-09-02 | Fuji Photo Film Co Ltd | Multicolor thermosensitive recording material |
| JP2006076112A (en) * | 2004-09-09 | 2006-03-23 | Ricoh Co Ltd | Thermosensitive recording material |
| CN101117064A (en) * | 2006-07-31 | 2008-02-06 | 三星电子株式会社 | Recording media for thermal transfer printers |
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